Driving means for magneto-generators.



@K WGLBRBQR Emmi@ MEANS 'fon MAGNET@ GENBRATORS.

APPLEUATIOE FILED LER ll, 1910.

Patented Feb. 3, 1911.

UNITED sTATps PATENT OFFTOE.

ORVILLE E. WOOLDRIDGE, OF GRIJIEBTVILLE, ILLINOIS.'

DRIVING MEANS FOR MAG-NETO-GENERATORS.

To all whom it may conccrn:

Be yit vknown that I, ORVILLE E. WOOL- Dmncn, a citizenof the United States, residing at Greenville, in the `'county of Bond and State of Illinois, have invented a new and useful Driving Means for Magneto-Generators, of which the following is a specification.

This invention relates to that class ofV magneto generators which are used in con nection with the ignition mechanism of internal combustion engines, and it is the ob ject of the invention to provide improved' driving` means for the generator, together with means whereby the same will be driven at a uniform rate of speed.

lith these objects in view, the invention consists in a novel construction and arrangement of parts to be hereinafter described and claimed, and in`order that the invention may be fully understood, reference is had to the accompanying drawing', in which drawing, a diagrammatic view of the invention, partly in section, is shown.

In the drawing, denotes an internal combustion engine of any type, and t is the crank shaft ol the engine. This shaft is supported in the usual crank caseof the engine, and it is further supported on the outside of the crank case, in hearings 7 carried by' a stand S. On this portion of the shaft is a pair of cranks fl which extend in oppo site directions theretron'l. The stand 8 sup ports two clyinders 10 which are arranged side by side, and ircach of which cylinders operates a piston 11, said pistons being connected by rods 12 to the respective cranks Si. Above the cylinders 10 is located a receiver 13 which is in communication with the cylinders b v valve controlled ports 14, the valves ot said ports being check valves to prevent the fluid from returning to the cylinders. Ncanthe upper end of the cylinders are valve controlled inlets 15.' The valves ot the last mentioned ports open to the outward stroke oi the. pistons 11` to let air into the cylinders, and on the return stroke said valves close, and the valves 15 open, where; upon the air is pumped into the receiver 13. The parts therefore operate as an air pump, and the air pumped into therecciver 13 is employed for driving a rotary motor which` is operativelyY connected to the magneto `generator. s To the top-of the receivcr is connected a cylindrical casing 16 which opens into the Specification of Letters Patent.

Application filed April 11, 1910.

rat-@need Feb. '7, 1911.

Serial No. 554,782.

receiver. On top of this casing is mounted -a suitable motor 17 of the rotary impact type. The shaft 18 of this motor is con-l nected t-o the magneto generator 19.

In the casing-16 is mounted a nozzle 20 which is arranged to discharge against the buckets of the motor 17. This nozzle opens into the receiver 13, and the air in the latter therefore tiows through the nozzle, and is discharged against the buckets of the motor. In the casing 1G is slidably mounted a valve 21 which controls relief ports 22 in `the wall of the casing'. This valve is a disk which tits snugly in the casing on one side of the relief ports, its normal position being between the ports and the receiver. The valve disk has a central opening through which the inlet end of the nozzle 2O passes, and this central opening is surrounded by an upstanding fiange 23. The casing 16 also contains a cross bar, 241 through the center of which is threaded a nut 25, through which nut the nozzle passes. Between the nut and the top of the flange 23, a. spring 26 is coiled around the nozzle, this spring opposing the pressure in the receiver 13. The

tension of the spring' is adjustable by the nut lVhen the pressure in the receiver 13 rises to a point sufficient to overcome the tension of the spring 2G, the'valve disk 21 is forced upwardly in the casing 1G until it uncovers the ports 22, whereupon the excess pressure is permitted to escape through said the spring 2G returns the valve disk 21 to closed position. This venting action is ef fccted without shutting ott the flow of air through thc nozzle 20, and the motor 17 therefore continues to run.

In order to retain pressure in the receiver 13 when thc engine 5 stops, the nozzle 2O is provided with a stop cock 2S. lVhen the engine stops this stop cock will be'closed whereupon sntlicient pressure will be retained in the receiver to st art the generator when the engine is again to be started.

It will bc apparent from the foregoing that the' motive tiuid supplied to the motor 17 will be at a uniiformpressure, and the magneto `enerator 19 will therefore be driven at a uniform rate of speed regardless the engine should increase to such an extent as to overcharge the receiver 13, the excess pressure will be at once relieved, the relief taking place instantly, and before the speed ports. When the normal {ness-ure is reached,

otn the speed ot the engine 5; If the spcedfof-H of the motor extent. y

Although the inventionis designed primarily for use in connection with motor vehicles, it will be apparent that vit may also be used in connection with marine and other types of internal combustion engines. The invention may also be ,applied to .any mechanism which is to be driven at a uniform rate of speedy i Various changes and modifications in the strueturidetails may also be resorted to without av departure from the invention.

That is claimed is:

can increase to an appreciable l. The combination of an internal corn-A bustion engine, a magneto 0fenerator .for ,the

jgniting mechanism, a fiuid 'pressure motor operatively connected to tho generator, a pump for supplying motive fluid to the motor, said pump being driven bythe engine, a receiver into which the pump discharges, a easing in communication With the receiver,

said. casing having vent ports, a nozzle i'n theV easing, one end of said nozzle opening into thereoeiver, iand its opposite-end diseharg ing intothe motor, a lvalve working in the casing, and controlling the vent ports,said

valve being exposed to the pressure in the re# eeiver, and yielding 2. In a Huid pressure `motor, a reservoir for the motive fluid, a casing communicating with the reservoir, said easing havingr vent ports, a supply nozzle for the motor extendlng through the easing, and opening into the' ORVILLE WooLnRDGE."

lvitnesses z H. NV. RIEDEMANN J. M. DANIELs.

means engaging the valve for opposing said4 pressure. 

